104 Design Engineer's Case Studies and Examples
The shaft radius (r
i
):
= 0.1 m
Therefore the slippage torque will be:
= 2.0164 MN × 0.1 m
= 201.64 kNm
This is the theoretical maximum torque capable of being transmitted without slippage due to
the gripping force of the shrinkage.
Actual torque = 63 kNm
The FoS will be:
=
201.64 kNm
63 kNm
= 3.20 (Ans.)

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